The sign for compliment is a modified version of the sign for SCHOOL
and/or CLAP. The difference between the two signs is that the
sign for compliment is done a bit softer and the contact is more
from the finger area of the dominant hand to the palm area of the
non-dominant hand, (not so much palm to palm contact as in the
general sign for SCHOOL).
Also the sign COMPLIMENT is sometimes held a bit more out from the
body -- especially if you are complimenting someone directly (done
slightly in the direction of the person receiving the compliment).
Also, you could express the concept of "compliment" via other
methods such as informing someone that someone else had said
something POSITIVE about them or
NICE about them.
You can learn
American Sign Language (ASL) online at American Sign Language University ™
ASL resources by Lifeprint.com © Dr. William Vicars